Air Quality in Tri-Cities, United States

Windy
29.6°C · 17.4% humidity
29.6°
Feels 29.6°
81
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
72 7am
75
83
81 10am
69
63
61 1pm
59
57
56 4pm
56
84
84 7pm
84
83
83 10pm
83
83
83 1am
83
83
83 4am
83
95
Station readings
72
75
83
106
CAMS model adj +29
54
54
54
34
27
25
25
25
25
25
25
54
54
54
54
54
54
54
54
54
54
54
54
66
AD 728×90

Air Quality Index Trend

47h · 3 stn

Tri-Cities's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Tri-Cities is 1.7× the WHO 24-hour guideline of 15 µg/m³.

17.4%
Humidity
43.9 km/h
Wind WSW
1009.4 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
81
26.19 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Tri-Cities?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.526.19 µg/m³ ×1.7 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (5 stations within 25 km)
26.19
Median
40.92
Average
21.03
Low
57.3
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -16.2
Both models agree Avg diff: 3.3°C

Where are air quality stations near Tri-Cities?

40
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 9.6 µg/m³
70
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 21.1 µg/m³
51
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 12.1 µg/m³
84
Kennewick-S Steptoe St
5.8 km PM2.5: 27.9 µg/m³
152
Pasco
7.9 km PM2.5: 57.7 µg/m³
156
Burbank-Maple St
15.3 km PM2.5: 65.9 µg/m³
163
Finley-S Finley Rd
15.9 km PM2.5: 79.7 µg/m³

What cities are near Tri-Cities?

99 Kennewick 134 Pasco 90 Richland 118 Hermiston 64 Sunnyside 25 Walla Walla 259 Pendleton 99 Moses Lake 72 Yakima 103 Ellensburg
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:13 UTC.